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Title: Materials Data on Sc7As3 by Materials Project

Abstract

Sc7As3 crystallizes in the tetragonal I4cm space group. The structure is three-dimensional. there are six inequivalent Sc sites. In the first Sc site, Sc is bonded in a 2-coordinate geometry to one Sc and four As atoms. The Sc–Sc bond length is 3.46 Å. There are a spread of Sc–As bond distances ranging from 2.67–3.17 Å. In the second Sc site, Sc is bonded in a 2-coordinate geometry to one Sc and four As atoms. The Sc–Sc bond length is 3.46 Å. There are a spread of Sc–As bond distances ranging from 2.67–3.17 Å. In the third Sc site, Sc is bonded to five As atoms to form a mixture of distorted edge and corner-sharing ScAs5 trigonal bipyramids. There are a spread of Sc–As bond distances ranging from 2.69–2.92 Å. In the fourth Sc site, Sc is bonded in a 3-coordinate geometry to two equivalent Sc and three As atoms. There are one shorter (3.20 Å) and one longer (3.22 Å) Sc–Sc bond lengths. There are a spread of Sc–As bond distances ranging from 2.80–2.99 Å. In the fifth Sc site, Sc is bonded in a rectangular see-saw-like geometry to four equivalent As atoms. All Sc–As bond lengths are 2.81more » Å. In the sixth Sc site, Sc is bonded in a 12-coordinate geometry to twelve Sc atoms. There are two inequivalent As sites. In the first As site, As is bonded in a 8-coordinate geometry to eight Sc atoms. In the second As site, As is bonded in a 9-coordinate geometry to nine Sc atoms.« less

Authors:
Publication Date:
Other Number(s):
mp-1219422
DOE Contract Number:  
AC02-05CH11231; EDCBEE
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Collaborations:
MIT; UC Berkeley; Duke; U Louvain
Subject:
36 MATERIALS SCIENCE
Keywords:
crystal structure; Sc7As3; As-Sc
OSTI Identifier:
1748340
DOI:
https://doi.org/10.17188/1748340

Citation Formats

The Materials Project. Materials Data on Sc7As3 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1748340.
The Materials Project. Materials Data on Sc7As3 by Materials Project. United States. doi:https://doi.org/10.17188/1748340
The Materials Project. 2020. "Materials Data on Sc7As3 by Materials Project". United States. doi:https://doi.org/10.17188/1748340. https://www.osti.gov/servlets/purl/1748340. Pub date:Wed Apr 29 00:00:00 EDT 2020
@article{osti_1748340,
title = {Materials Data on Sc7As3 by Materials Project},
author = {The Materials Project},
abstractNote = {Sc7As3 crystallizes in the tetragonal I4cm space group. The structure is three-dimensional. there are six inequivalent Sc sites. In the first Sc site, Sc is bonded in a 2-coordinate geometry to one Sc and four As atoms. The Sc–Sc bond length is 3.46 Å. There are a spread of Sc–As bond distances ranging from 2.67–3.17 Å. In the second Sc site, Sc is bonded in a 2-coordinate geometry to one Sc and four As atoms. The Sc–Sc bond length is 3.46 Å. There are a spread of Sc–As bond distances ranging from 2.67–3.17 Å. In the third Sc site, Sc is bonded to five As atoms to form a mixture of distorted edge and corner-sharing ScAs5 trigonal bipyramids. There are a spread of Sc–As bond distances ranging from 2.69–2.92 Å. In the fourth Sc site, Sc is bonded in a 3-coordinate geometry to two equivalent Sc and three As atoms. There are one shorter (3.20 Å) and one longer (3.22 Å) Sc–Sc bond lengths. There are a spread of Sc–As bond distances ranging from 2.80–2.99 Å. In the fifth Sc site, Sc is bonded in a rectangular see-saw-like geometry to four equivalent As atoms. All Sc–As bond lengths are 2.81 Å. In the sixth Sc site, Sc is bonded in a 12-coordinate geometry to twelve Sc atoms. There are two inequivalent As sites. In the first As site, As is bonded in a 8-coordinate geometry to eight Sc atoms. In the second As site, As is bonded in a 9-coordinate geometry to nine Sc atoms.},
doi = {10.17188/1748340},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}